Faculty MoodleHelpil ContactStudent MoodleStudentNavigatorHelpWellnessTanikses / MATH-1905-A02-20342-2021 Spr / Unit 4: Graphing / Unit 4 Lessons 4.1-4.4 QuizConsider the following relation between the length of a long distance call, and the cost.Cost for Long Distance Calls10090-80-70-60-50+40Time (h)How much will a 4 1/2 minute phone call cost in cents?Answer:Cost (e)

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Answered: Consider the following relation between…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter9: Systems Of Equations And Inequalities

Section9.4: Linear Programming

Problem 19E

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Mass-Luminosity Relation Roughly 90 of all stars are main-sequence stars. Exceptions include supergiants, giants, and dwarfs. For main-sequence stars including the sun, there is an important relationship called the mass-luminosity relation between the relative luminosity L and the mass M in terms of solar masses. Relative masses and luminosities of several main-sequence stars are reported in the accompanying table. Star Solar mass M Luminosity L Spica 7.3 1050 Vega 3.1 55 Altair 1 1.1 The Sun 1 1 61 Cygni A 0.17 0.002 a Find a power model for the data in this table. Round the power and the coefficient to one decimal place. The function you find is known to astronomers as the mass-luminosity relation. b Kruger 60 is a main sequence star that is about 0.11 solar mass. Use functional notation to express the relative luminosity of Kruger 60, and then calculate that value. c Wolf 359 has a relative luminosity of about 0.0001. How massive is Wolf 359? d If one star is 3 times as massive as another, how do their luminosities compare?
World Crude Oil Production In 1956, M.King Hubbert proposed a model to analyse crude oil production. His model, with updated data, gives world crude oil production as P=254.43e0.042t(1+2.12e0.042t)2 Here P is measured in billions of barrels per year, and t is time, in year, since 2000. a.Make a graph of world crude oil production for 2000 through 2040. b.When does this model predict a peak in world crude oil production? c.What is the maximum crude oil production predicted by this model?
TEST TOUR UNDERSTANDING FOR EXAMPLE 2.3 Suppose a company has 15 worker and always produces 1000 items per day. Union agreements limit working time for each employee to no more than 10 hours per day. Make a graph of labor productivity versus hours worked per employee per day. In this setting, when the number of hours worked increases, does productivity increase or decrease?

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Consider the following relation between the length of a long distance call, and the cost. Cost for Long Distance Calls 100 90 80- 70- 60 50+ 40- 0. 3. 4. Time (h) How much will a 4 1/2 minute phone call cost in cents? Answer: (5) so